Nanocrystalline cores feature a high flux density, excellent temperatur stability, low losses and a low sensistivity against mechanical stresses. This allows e. g. the use of hard resins with good electrical properties. The ring form combined with the material inherent high permeability values is of advantage for pulse transformers with low stray inductivity and thus small current raise times.
Other applications for nanocrystalline power transformer cores are IGBT driven push-pull transformers in the kW range, e. g. for telecommunication base stations or power supplies in trains and other vehicles and trigger transformers.
| Part number | Nominal size | Effective cross section | Magnetic path length | Core weight | AL,Nenn (100 kHz) |
Effective winding space | Mean copper path | Heat transfer restance |
|---|---|---|---|---|---|---|---|---|
| T60004-L2 | da x di x h | AFe | lFe | mFe | AL | ACu | lCu | Rth, typisch |
| ... | [mm³] | [cm²] | [cm] | [g] | [µH] | [cm²] | [cm] | [K/W] |
| 016-W373 | 16 x 10 x 6 | 0,14 | 4,08 | 4,3 | 10,0 | 0,2 | 3,2 | 33,0 |
| 020-W374 | 20 x 12.5 x 8 | 0,24 | 5,11 | 9 | 13,0 | 0,3 | 4,0 | 23,0 |
| 025-W375 | 25 x 16 x 10 | 0,36 | 6,44 | 17 | 16,0 | 0,6 | 4,8 | 16,0 |
| 030-W376 | 30 x 20 x 15 | 0,57 | 7,85 | 33 | 20,0 | 0,9 | 6,4 | 11,0 |
| 040-W433 | 40 x 25 x 15 | 0,86 | 10,2 | 64 | 23,0 | 1,5 | 7,2 | 7,5 |
| 050-W434 | 50 x 40 x 20 | 0,76 | 14,1 | 79 | 15,0 | 4,1 | 9,0 | 4,5 |
| 052-W827 | 52 x 40 x 25 | 1,14 | 14,5 | 121 | 22,0 | 4,1 | 10,2 | 4,1 |
| 063-W435 | 63 x 50 x 25 | 1,24 | 17,8 | 161 | 19,0 | 6,4 | 11,1 | 3,1 |
| 080-W436 | 80 x 63 x 25 | 1,62 | 22,5 | 267 | 20,0 | 10,4 | 12,6 | 2,2 |
| 100-W342 | 100 x 80 x 25 | 1,9 | 28,3 | 395 | 19,0 | 16,4 | 14,6 | 1,6 |
| 130-W352 | 130 x 100 x 25 | 2,85 | 36,1 | 757 | 22,0 | 26,3 | 17,2 | 1,1 |
| 160-W758 | 160 x 110 x 25 | 4,75 | 36,1 | 1480 | 31,0 | 32,5 | 19,9 | 0,8 |
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